Ordering
Information
Disinfection Controllers
WDIS400 Series
WDIS410U
voltage
output
sensor
Webmaster ONE
®
USB
WebMasterONE is the most advanced online cooling tower and
boiler controller in the water treatment industry. The flexible
multi-I/O platform allows you to control multiple cooling towers,
boilers, closed loops, and condensate lines with just one controller.
An extensive assortment of integrated communications and data
handling features are included that enable water treatment
professional to provide more effective water management services
to their customers.
VOLTAGE
1=120 VAC, prewired w/ USA power cord & 6” pigtails
5=Hardwired, cable glands
OUTPUT
N=No data output
4=One (1) Isolated 4-20 mA output
2=Two (2) Isolated 4-20 mA outputs
Metering Pumps
The E-Class is the most innovative and comprehensive metering
pump product line in the world. Over 50 years of pump experience
and a commitment to superior mechanical design has led to
development of many industry firsts, including 360 stroke-perminute technology, IP67 waterproof construction, and the world’s
highest capacity solenoid metering pumps.
SENSOR (consult factory for other sensor types & ranges)
N= No sensor
1=Free chlorine/bromine sensor with flow cell & 20 ft. cable
2=Chlorine dioxide sensor with flow cell & 20 ft. cable
3=Ozone sensor with flow cell & 20 ft. cable
4=Peracetic acid sensor with flow cell & 20 ft. cable
5=Free chlorine/bromine sensor with flow manifold &5 ft. cable on panel
6=Chlorine dioxide sensor with flow manifold & 5 ft. cable
on panel
7=Ozone sensor with flow manifold & 5 ft. cable on panel
8=Peracetic acid sensor with flow manifold & 5 ft. cable
on panel
A=Free chlorine/bromine sensor, extended pH range
with flow cell & 20 ft. cable
B=Free chlorine/bromine sensor, extended pH range
with flow cell & 5 ft. cable on panel
WIND WebMaster® Industrial Water Controllers
Walchem’s WebMaster Industrial (WIND) Controller sets a new
standard for Industrial Water Treatment Controllers. WIND has
a flexible multi-I/O platform, a wide range of analytical sensor
measurement capabilities, and an extensive assortment of
integrated communications and data handling features.
AGENCY CERTIFICATIONS
Safety
EMC
UL 61010-1:2012 3rd Ed.
CSA C22.2 No. 61010-1:2012 3rd Ed.
IEC 61010-1:2010 3rd Ed.
EN 61010-1:2010 3rd Ed.
IEC 61326-1:2005
EN 61326-1:2006
Walchem’s WebAlert is the first stand alone remote monitoring
device that can web enable your installed equipment without
having to replace or upgrade it.
Designed to be flexible and versatile, the WDIS Series controller is
the ideal solution for disinfection applications in cooling towers, food &
beverage, drinking water, wastewater and swimming pools.
Integrated datalogging is available to validate system performance. A
USB memory stick is all that’s needed to extract data and event logs
that include disinfection sensor measurements and relay status.
Summary of Key Benefits
Versatility for a Broad Range of Applications
Choose from four standard industrial grade sensors in one controller (chlorine/bromine, chlorine dioxide,
ozone, peracetic acid) or configure the controller to use a variety of other disinfection sensors. Relays
can be configured for Hi Alarm, Low Alarm, Out-of-Range Alarm, In-Range Output or Probe Wash, providing
unmatched flexibility.
ABOUT US
Walchem integrates its advanced sensing, instrumentation, fluid
pumping and communications technologies to deliver reliable and
innovative solutions to the global water treatment market.
Our in-house engineering is driven by quality, technology and
innovation. For more information on the entire Walchem
product line, visit: www.walchem.com
Note: For EN61000-4-6 & EN61000-4-3 the
controller met performance criteria B.
Economical and Simple to Use
WDIS controllers are economically priced and do not require any costly reagents. The rugged NEMA 4X
enclosure and panel mounted flow assembly has only two process connections for quick and easy installation.
Built-in Safety Features
Programmable output limit timers prevent run-away chemical addition. Digital Interlock Input may be used
from a flow switch or level input to prevent chemical addition based on a stagnant sample, or control of an
empty batch tank. The alarm relay notifies plant personnel of alarm conditions as soon as they occur.
Simple, Integrated Data Collection
Download stored data from the controller to a USB stick. Use the data to simply
and easily validate system performance, document compliance and reduce liability.
The data and event logs show disinfection levels, as well as accumulated chemical
feed and relay activation times.
*Class A equipment: Equipment suitable for use in
establishments other than domestic, and those
directly connected to a low voltage (100-240 VAC)
power supply network which supplies buildings used
for domestic purposes.
180374.O May 2014
The WDIS Series controller takes the guesswork out of your
disinfection process. The chemical concentration is continuously
monitored and controlled to the precise range required for proper
system control and regulatory compliance.
WebAlert® Remote Monitor
USB FEATURES
U=Integrated datalogging, event/reset logging, and
configuration file import/export
Note: Refer to the Disinfection Sensor brochure for
additional sensor options. Order the WDIS controller
with sensor option “N” then order the appropriate
sensor separately.
Walchem’s WDIS Series controller will reliably and economically
control your water treatment disinfection process. The controller
includes four standard sensor input options (free chlorine/bromine,
chlorine dioxide, ozone, peracetic acid) or can be configured to use
a variety of other types or ranges of Walchem disinfection sensors,
such as hydrogen peroxide or total chlorine.
Walchem, Iwaki America Inc.
Five Boynton Road Hopping Brook Park
Holliston, MA 01746 USA
Phone: 508-429-1110 www.walchem.com
Features
Specifications
Versatile relay configuration
• Control outputs can be set as high or low set points via keypad. Auxiliary outputs can be set as:
• High alarm • Low alarm
• In-range output
• Probe wash
• Out of range alarm
Probe wash feature
• For applications that require frequent electrode cleaning, automatic probe wash extends the time between maintenance interruptions
Programmable access code
• Secures set point parameters and prevents un-
authorized use. Program any four digit access number or disable the code requirement.
Display status at a glance
• Look at any set point without interrupting control or entering an access code. Top level view:
• Analog graph relative to set point
• Disinfection sensor values
• Status of alarms, outputs
19”
Disinfection Controlle r
8.25”
Self diagnostics
• Software and electronics are constantly monitored without having to take the controller off-line. Any error messages are clearly displayed. A fifth relay is activated by any diagnostics failures.
USB Flashstick Support
• Standard for data logs, event/relay and reset logs, and user configuration file import/export
Relatively insensitive to changes in sample flow rate
Large openings in flow cell prevent clogging
Integrated temperature compensation
Excellent long-term stability
Free Chlorine /Bromine
Chlorine and Bromine are the most common disinfectants
used in water treatment. They’re readily available, inexpensive, and typically used in drinking water, swimming pools,
cooling towers and process water applications.
Peracetic Acid
Peracetic acid has been used for decades as a disinfectant in
the food & beverage industry. Its use has grown to many other
applications including bottling, CIP (Clean In Place), laundry,
pulp & paper, and agriculture.
Chlorine Dioxide
Chlorine dioxide is a very strong oxidant that is often used
for disinfection in drinking water, food & beverage, and
cooling tower applications. It’s preferred for some uses
since it doesn’t affect the taste and odor of the water
being treated.
Ozone
Ozone is the strongest oxidant used in water treatment. it
is commonly used in drinking water (disinfection, oxidation,
taste and odor control), food & beverage, swimming pools
(therapy pools), zoos and aquariums.
USB Features
Integrated datalogging collects analytical measurements at 10 minute intervals and captures all relay activations.
Download
Stored Data
Copy user-defined
settings
Easily create
charts and graphs
that demonstrate system
performance
Programming a new
controller is complete
in seconds!
Use stored data
to validate
system performance
EXI T
www.walchem.com
24”
19”
3.5”
Mechanical (controller)
Enclosure
Polycarbonate
NEMA Rating
NEMA 4X (IP65)
2 x 16 character backlit liquid crystal
Display
Ambient Temperature
32 to 122°F (0 to 50°C)
Shipping weight
26 lbs (11.8 kg) (approximately)
8”
Inputs
Sensor Specifications
Input Power:
100-240 VAC, 50/60 Hz, 8A
Fuse: 1.0 ampere, 5 x 20 mm
Mechanical
Operating Temperature Chlorine Dioxide, Ozone:
5 to 50°C (41 to 122°F)
Chlorine/Bromine, Peracetic Acid:
Input Signals:
5 to 45°C (41 to 113°F)
Sensor ±2000 mV
Operating
pressure
0 to 1 atm (0 to 14.7 psi)
Interlock (Optional) Isolated, dry contact closure required(i.e. flow, level)
Storage Sensor: Frost-protected, dry and without electrolyte no limit at
>5 to <40°C ( >41 to <104 °F)
Membrane cap: Used membrane caps can not be stored!
Electrolyte: in original bottle protected from sunlight min. 1 year at
>5 to <25°C (>41 to <77°F)
Outputs
Control 1, Control 2 (On/Off):
Two internally powered relays, 6A (resistive), 1/8 HP
All relays are fused together as one group, total current for this group must not exceed 6A
Flow cell inlet
Flow cell outlet
4-20 mA 1 or 2:
(optional)
Sensor Power:
Electrical
Power requirements
±5 VDC, 5 mA maximum
0 to -2000 mVDC
Signal
Max cable length
305 m (1000 ft)
Cable required
2 twisted pair, 24 AWG shielded,
±5VDC, 5 mA
Cross sensivity
Chlorine
Dioxide
Peracetic
Acid
Ozone
Free Chlorine/
Bromine
Free Chlorine/Bromine
Extended pH Range
0-16.75 mg/l
0-1675 mg/l
0-16.75 mg/l
0-13.25 mg/l
0-12.50 mg/l
0.01 mg/l
1 mg/l
0.01 mg/l
0.01 mg/l
0.01 mg/l
Free chlorine
(5%)
Ozone, ClO2
Ozone, ClO2
Free chlorine
(5%), Ozone
Flow rate of sample
pH range of sample
30 to 100 liters/hr (7.9 to 26.4 gallons/hr
1.0 to 11.0
Conductivity range of sample
Response time
Sensor Body
PVC, Polycarbonate,Silicone Rubber,
PTFE, PEEK
Flow cell bodyIsoplast
O-ringFKM
Internally powered, Fully isolated
600 Ohm max resistive load
Resolution .001% of span
Accuracy ± 1% of reading
Resolution
1/4” NPTF
3/4” NPTF
Materials of Construction
Control 3, Control 4, Alarm:
Dry contact relays, 6A (resistive), 1/8 HP
Range
Identify system upsets
faster by knowing
exactly what
happened and when
NEXT
W A L C H E M
Standard Disinfection Sensors | Free Chlorine/Bromine • Chlorine Dioxide • Peracetic Acid • Ozone
Long-lasting amperometric electrode with rugged
membrane
PREV
ENTER
1.0 to 7.0
2.0 to 11.0
50 to 10,000 µS/cm
30 seconds
3 minutes
30 seconds
6.8 to 8.0
4.0 to 12.0
Up to 4% NaCl
50 to 10,000 µS/cm
30 seconds
2 minutes
Features
Specifications
Versatile relay configuration
• Control outputs can be set as high or low set points via keypad. Auxiliary outputs can be set as:
• High alarm • Low alarm
• In-range output
• Probe wash
• Out of range alarm
Probe wash feature
• For applications that require frequent electrode cleaning, automatic probe wash extends the time between maintenance interruptions
Programmable access code
• Secures set point parameters and prevents un-
authorized use. Program any four digit access number or disable the code requirement.
Display status at a glance
• Look at any set point without interrupting control or entering an access code. Top level view:
• Analog graph relative to set point
• Disinfection sensor values
• Status of alarms, outputs
19”
Disinfection Controlle r
8.25”
Self diagnostics
• Software and electronics are constantly monitored without having to take the controller off-line. Any error messages are clearly displayed. A fifth relay is activated by any diagnostics failures.
USB Flashstick Support
• Standard for data logs, event/relay and reset logs, and user configuration file import/export
Relatively insensitive to changes in sample flow rate
Large openings in flow cell prevent clogging
Integrated temperature compensation
Excellent long-term stability
Free Chlorine /Bromine
Chlorine and Bromine are the most common disinfectants
used in water treatment. They’re readily available, inexpensive, and typically used in drinking water, swimming pools,
cooling towers and process water applications.
Peracetic Acid
Peracetic acid has been used for decades as a disinfectant in
the food & beverage industry. Its use has grown to many other
applications including bottling, CIP (Clean In Place), laundry,
pulp & paper, and agriculture.
Chlorine Dioxide
Chlorine dioxide is a very strong oxidant that is often used
for disinfection in drinking water, food & beverage, and
cooling tower applications. It’s preferred for some uses
since it doesn’t affect the taste and odor of the water
being treated.
Ozone
Ozone is the strongest oxidant used in water treatment. it
is commonly used in drinking water (disinfection, oxidation,
taste and odor control), food & beverage, swimming pools
(therapy pools), zoos and aquariums.
USB Features
Integrated datalogging collects analytical measurements at 10 minute intervals and captures all relay activations.
Download
Stored Data
Copy user-defined
settings
Easily create
charts and graphs
that demonstrate system
performance
Programming a new
controller is complete
in seconds!
Use stored data
to validate
system performance
EXI T
www.walchem.com
24”
19”
3.5”
Mechanical (controller)
Enclosure
Polycarbonate
NEMA Rating
NEMA 4X (IP65)
2 x 16 character backlit liquid crystal
Display
Ambient Temperature
32 to 122°F (0 to 50°C)
Shipping weight
26 lbs (11.8 kg) (approximately)
8”
Inputs
Sensor Specifications
Input Power:
100-240 VAC, 50/60 Hz, 8A
Fuse: 1.0 ampere, 5 x 20 mm
Mechanical
Operating Temperature Chlorine Dioxide, Ozone:
5 to 50°C (41 to 122°F)
Chlorine/Bromine, Peracetic Acid:
Input Signals:
5 to 45°C (41 to 113°F)
Sensor ±2000 mV
0 to 1 atm (0 to 14.7 psi)
Operating
pressure
Interlock (Optional) Isolated, dry contact closure required(i.e. flow, level)
Storage Sensor: Frost-protected, dry and without electrolyte no limit at
>5 to <40°C ( >41 to <104 °F)
Membrane cap: Used membrane caps can not be stored!
Electrolyte: in original bottle protected from sunlight min. 1 year at
>5 to <25°C (>41 to <77°F)
Outputs
Control 1, Control 2 (On/Off):
Two internally powered relays, 6A (resistive), 1/8 HP
All relays are fused together as one group, total current for this group must not exceed 6A
Flow cell inlet
Flow cell outlet
4-20 mA 1 or 2:
(optional)
Sensor Power:
Electrical
Power requirements
±5 VDC, 5 mA maximum
0 to -2000 mVDC
Signal
Max cable length
305 m (1000 ft)
Cable required
2 twisted pair, 24 AWG shielded,
±5VDC, 5 mA
Cross sensivity
Chlorine
Dioxide
Peracetic
Acid
Ozone
Free Chlorine/
Bromine
Free Chlorine/Bromine
Extended pH Range
0-16.75 mg/l
0-1675 mg/l
0-16.75 mg/l
0-13.25 mg/l
0-12.50 mg/l
0.01 mg/l
1 mg/l
0.01 mg/l
0.01 mg/l
0.01 mg/l
Free chlorine
(5%)
Ozone, ClO2
Ozone, ClO2
Free chlorine
(5%), Ozone
Flow rate of sample
pH range of sample
30 to 100 liters/hr (7.9 to 26.4 gallons/hr
1.0 to 11.0
Conductivity range of sample
Response time
Sensor Body
PVC, Polycarbonate,Silicone Rubber,
PTFE, SS, PEEK
Flow cell bodyIsoplast
O-ringFKM
Internally powered, Fully isolated
600 Ohm max resistive load
Resolution .001% of span
Accuracy ± 1% of reading
Resolution
1/4” NPTF
3/4” NPTF
Materials of Construction
Control 3, Control 4, Alarm:
Dry contact relays, 6A (resistive), 1/8 HP
Range
Identify system upsets
faster by knowing
exactly what
happened and when
NEXT
W A L C H E M
Standard Disinfection Sensors | Free Chlorine/Bromine • Chlorine Dioxide • Peracetic Acid • Ozone
Long-lasting amperometric electrode with rugged
membrane
PREV
ENTER
1.0 to 7.0
2.0 to 11.0
50 to 10,000 µS/cm
30 seconds
3 minutes
30 seconds
6.8 to 8.0
4.0 to 12.0
Up to 4% NaCl
50 to 10,000 µS/cm
30 seconds
2 minutes
Ordering
Information
Disinfection Controllers
WDIS400 Series
WDIS410U
voltage
output
sensor
Webmaster ONE
®
USB
WebMasterONE is the most advanced online cooling tower and
boiler controller in the water treatment industry. The flexible
multi-I/O platform allows you to control multiple cooling towers,
boilers, closed loops, and condensate lines with just one controller.
An extensive assortment of integrated communications and data
handling features are included that enable water treatment
professional to provide more effective water management services
to their customers.
VOLTAGE
1=120 VAC, prewired w/ USA power cord & 6” pigtails
5=Hardwired, cable glands
OUTPUT
N=No data output
4=One (1) Isolated 4-20 mA output
2=Two (2) Isolated 4-20 mA outputs
Metering Pumps
The E-Class is the most innovative and comprehensive metering
pump product line in the world. Over 50 years of pump experience
and a commitment to superior mechanical design has led to
development of many industry firsts, including 360 stroke-perminute technology, IP67 waterproof construction, and the world’s
highest capacity solenoid metering pumps.
SENSOR (consult factory for other sensor types & ranges)
N= No sensor
1=Free chlorine/bromine sensor with flow cell & 20 ft. cable
2=Chlorine dioxide sensor with flow cell & 20 ft. cable
3=Ozone sensor with flow cell & 20 ft. cable
4=Peracetic acid sensor with flow cell & 20 ft. cable
5=Free chlorine/bromine sensor with flow manifold &5 ft. cable on panel
6=Chlorine dioxide sensor with flow manifold & 5 ft. cable
on panel
7=Ozone sensor with flow manifold & 5 ft. cable on panel
8=Peracetic acid sensor with flow manifold & 5 ft. cable
on panel
A=Free chlorine/bromine sensor, extended pH range
with flow cell & 20 ft. cable
B=Free chlorine/bromine sensor, extended pH range
with flow cell & 5 ft. cable on panel
WIND WebMaster® Industrial Water Controllers
Walchem’s WebMaster Industrial (WIND) Controller sets a new
standard for Industrial Water Treatment Controllers. WIND has
a flexible multi-I/O platform, a wide range of analytical sensor
measurement capabilities, and an extensive assortment of
integrated communications and data handling features.
AGENCY CERTIFICATIONS
Safety
EMC
UL 61010-1:2012 3rd Ed.
CSA C22.2 No. 61010-1:2012 3rd Ed.
IEC 61010-1:2010 3rd Ed.
EN 61010-1:2010 3rd Ed.
IEC 61326-1:2005
EN 61326-1:2006
Walchem’s WebAlert is the first stand alone remote monitoring
device that can web enable your installed equipment without
having to replace or upgrade it.
Designed to be flexible and versatile, the WDIS Series controller is
the ideal solution for disinfection applications in cooling towers, food &
beverage, drinking water, wastewater and swimming pools.
Integrated datalogging is available to validate system performance. A
USB memory stick is all that’s needed to extract data and event logs
that include disinfection sensor measurements and relay status.
Summary of Key Benefits
Versatility for a Broad Range of Applications
Choose from four standard industrial grade sensors in one controller (chlorine/bromine, chlorine dioxide,
ozone, peracetic acid) or configure the controller to use a variety of other disinfection sensors. Relays
can be configured for Hi Alarm, Low Alarm, Out-of-Range Alarm, In-Range Output or Probe Wash, providing
unmatched flexibility.
ABOUT US
Walchem integrates its advanced sensing, instrumentation, fluid
pumping and communications technologies to deliver reliable and
innovative solutions to the global water treatment market.
Our in-house engineering is driven by quality, technology and
innovation. For more information on the entire Walchem
product line, visit: www.walchem.com
Note: For EN61000-4-6 & EN61000-4-3 the
controller met performance criteria B.
Economical and Simple to Use
WDIS controllers are economically priced and do not require any costly reagents. The rugged NEMA 4X
enclosure and panel mounted flow assembly has only two process connections for quick and easy installation.
Built-in Safety Features
Programmable output limit timers prevent run-away chemical addition. Digital Interlock Input may be used
from a flow switch or level input to prevent chemical addition based on a stagnant sample, or control of an
empty batch tank. The alarm relay notifies plant personnel of alarm conditions as soon as they occur.
Simple, Integrated Data Collection
Download stored data from the controller to a USB stick. Use the data to simply
and easily validate system performance, document compliance and reduce liability.
The data and event logs show disinfection levels, as well as accumulated chemical
feed and relay activation times.
*Class A equipment: Equipment suitable for use in
establishments other than domestic, and those
directly connected to a low voltage (100-240 VAC)
power supply network which supplies buildings used
for domestic purposes.
180374.P June 2014
The WDIS Series controller takes the guesswork out of your
disinfection process. The chemical concentration is continuously
monitored and controlled to the precise range required for proper
system control and regulatory compliance.
WebAlert® Remote Monitor
USB FEATURES
U=Integrated datalogging, event/reset logging, and
configuration file import/export
Note: Refer to the Disinfection Sensor brochure for
additional sensor options. Order the WDIS controller
with sensor option “N” then order the appropriate
sensor separately.
Walchem’s WDIS Series controller will reliably and economically
control your water treatment disinfection process. The controller
includes four standard sensor input options (free chlorine/bromine,
chlorine dioxide, ozone, peracetic acid) or can be configured to use
a variety of other types or ranges of Walchem disinfection sensors,
such as hydrogen peroxide or total chlorine.
Walchem, Iwaki America Inc.
Five Boynton Road Hopping Brook Park
Holliston, MA 01746 USA
Phone: 508-429-1110 www.walchem.com